./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:34:29,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:34:29,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:34:29,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:34:29,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:34:29,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:34:29,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:34:29,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:34:29,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:34:29,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:34:29,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:34:29,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:34:29,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:34:29,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:34:29,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:34:29,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:34:29,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:34:29,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:34:29,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:34:29,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:34:29,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:34:29,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:34:29,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:34:29,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:34:29,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:34:29,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:34:29,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:34:29,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:34:29,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:34:29,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:34:29,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:34:29,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:34:29,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:34:29,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:34:29,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:34:29,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:34:29,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:34:29,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:34:29,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:34:29,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:34:29,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:34:29,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:34:29,428 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:34:29,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:34:29,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:34:29,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:34:29,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:34:29,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:34:29,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:34:29,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:34:29,431 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:34:29,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:34:29,432 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:34:29,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:34:29,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:34:29,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:34:29,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:34:29,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:34:29,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:34:29,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:34:29,434 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:34:29,434 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:34:29,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:34:29,434 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:34:29,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:34:29,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:34:29,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:34:29,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:34:29,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:34:29,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:34:29,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:34:29,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:34:29,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:34:29,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:34:29,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:34:29,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:34:29,437 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:34:29,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:34:29,437 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:34:29,438 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:34:29,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:34:29,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:34:29,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:34:29,752 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:34:29,752 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:34:29,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-08-30 14:34:30,895 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:34:31,119 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:34:31,119 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-08-30 14:34:31,132 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121cadafb/05d730864d7941f8941cf33b7c0d40fb/FLAG88c61bf01 [2023-08-30 14:34:31,145 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/121cadafb/05d730864d7941f8941cf33b7c0d40fb [2023-08-30 14:34:31,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:34:31,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:34:31,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:34:31,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:34:31,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:34:31,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1cb5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31, skipping insertion in model container [2023-08-30 14:34:31,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:34:31,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:34:31,384 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2023-08-30 14:34:31,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:34:31,562 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:34:31,574 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2023-08-30 14:34:31,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:34:31,659 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:34:31,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31 WrapperNode [2023-08-30 14:34:31,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:34:31,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:34:31,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:34:31,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:34:31,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,710 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 117 [2023-08-30 14:34:31,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:34:31,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:34:31,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:34:31,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:34:31,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:34:31,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:34:31,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:34:31,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:34:31,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (1/1) ... [2023-08-30 14:34:31,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:34:31,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:34:31,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 14:34:31,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 14:34:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:34:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:34:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:34:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:34:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 14:34:31,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 14:34:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:34:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:34:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:34:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:34:31,829 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:34:31,997 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:34:31,999 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:34:32,257 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:34:32,264 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:34:32,264 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 14:34:32,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:34:32 BoogieIcfgContainer [2023-08-30 14:34:32,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:34:32,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:34:32,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:34:32,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:34:32,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:34:31" (1/3) ... [2023-08-30 14:34:32,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1310116f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:34:32, skipping insertion in model container [2023-08-30 14:34:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:34:31" (2/3) ... [2023-08-30 14:34:32,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1310116f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:34:32, skipping insertion in model container [2023-08-30 14:34:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:34:32" (3/3) ... [2023-08-30 14:34:32,273 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2023-08-30 14:34:32,280 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:34:32,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:34:32,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 14:34:32,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:34:32,339 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 14:34:32,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 129 transitions, 263 flow [2023-08-30 14:34:32,431 INFO L130 PetriNetUnfolder]: 4/131 cut-off events. [2023-08-30 14:34:32,432 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:34:32,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 4/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-30 14:34:32,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 129 transitions, 263 flow [2023-08-30 14:34:32,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 257 flow [2023-08-30 14:34:32,443 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:34:32,451 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 257 flow [2023-08-30 14:34:32,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 257 flow [2023-08-30 14:34:32,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 257 flow [2023-08-30 14:34:32,476 INFO L130 PetriNetUnfolder]: 4/127 cut-off events. [2023-08-30 14:34:32,476 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:34:32,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 127 events. 4/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-30 14:34:32,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2023-08-30 14:34:36,173 INFO L134 LiptonReduction]: Checked pairs total: 9507 [2023-08-30 14:34:36,173 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-30 14:34:36,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:34:36,191 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a6ab84d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:34:36,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 14:34:36,195 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 14:34:36,196 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:34:36,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:36,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 14:34:36,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:36,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:36,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1238990732, now seen corresponding path program 1 times [2023-08-30 14:34:36,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:36,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226301973] [2023-08-30 14:34:36,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:36,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:34:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:34:36,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:36,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226301973] [2023-08-30 14:34:36,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226301973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:34:36,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:34:36,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:34:36,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386352632] [2023-08-30 14:34:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:34:36,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:34:36,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:34:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:34:36,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 242 [2023-08-30 14:34:36,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:34:36,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 242 [2023-08-30 14:34:36,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:34:36,673 INFO L130 PetriNetUnfolder]: 97/258 cut-off events. [2023-08-30 14:34:36,674 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:34:36,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 258 events. 97/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1120 event pairs, 88 based on Foata normal form. 9/221 useless extension candidates. Maximal degree in co-relation 460. Up to 206 conditions per place. [2023-08-30 14:34:36,679 INFO L137 encePairwiseOnDemand]: 238/242 looper letters, 21 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-30 14:34:36,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 107 flow [2023-08-30 14:34:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:34:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:34:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-30 14:34:36,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-08-30 14:34:36,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-30 14:34:36,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-30 14:34:36,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:34:36,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-30 14:34:36,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,718 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 3 states and 373 transitions. [2023-08-30 14:34:36,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 107 flow [2023-08-30 14:34:36,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:34:36,722 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 64 flow [2023-08-30 14:34:36,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-08-30 14:34:36,732 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 14:34:36,732 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 64 flow [2023-08-30 14:34:36,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:36,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 14:34:36,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:34:36,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:36,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1238990789, now seen corresponding path program 1 times [2023-08-30 14:34:36,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:36,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928974324] [2023-08-30 14:34:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:36,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:34:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:34:36,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928974324] [2023-08-30 14:34:36,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928974324] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:34:36,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:34:36,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:34:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163215926] [2023-08-30 14:34:36,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:34:36,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:34:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:34:36,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:34:36,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 242 [2023-08-30 14:34:36,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:34:36,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 242 [2023-08-30 14:34:36,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:34:36,949 INFO L130 PetriNetUnfolder]: 85/233 cut-off events. [2023-08-30 14:34:36,950 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:34:36,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 233 events. 85/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 984 event pairs, 77 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 415. Up to 182 conditions per place. [2023-08-30 14:34:36,953 INFO L137 encePairwiseOnDemand]: 240/242 looper letters, 14 selfloop transitions, 1 changer transitions 6/29 dead transitions. [2023-08-30 14:34:36,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 104 flow [2023-08-30 14:34:36,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:34:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:34:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-30 14:34:36,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-08-30 14:34:36,956 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-30 14:34:36,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-30 14:34:36,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:34:36,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-30 14:34:36,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,962 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 64 flow. Second operand 3 states and 373 transitions. [2023-08-30 14:34:36,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 104 flow [2023-08-30 14:34:36,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:34:36,963 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 51 flow [2023-08-30 14:34:36,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-30 14:34:36,964 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-30 14:34:36,964 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 51 flow [2023-08-30 14:34:36,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:36,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:36,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:34:36,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:34:36,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:36,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash -309011210, now seen corresponding path program 1 times [2023-08-30 14:34:36,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:36,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710326052] [2023-08-30 14:34:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:36,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:34:37,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:34:37,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:37,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710326052] [2023-08-30 14:34:37,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710326052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:34:37,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:34:37,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:34:37,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570571076] [2023-08-30 14:34:37,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:34:37,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 14:34:37,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:37,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 14:34:37,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 14:34:37,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 242 [2023-08-30 14:34:37,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:34:37,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 242 [2023-08-30 14:34:37,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:34:37,172 INFO L130 PetriNetUnfolder]: 61/186 cut-off events. [2023-08-30 14:34:37,173 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:34:37,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 186 events. 61/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 748 event pairs, 28 based on Foata normal form. 8/185 useless extension candidates. Maximal degree in co-relation 334. Up to 80 conditions per place. [2023-08-30 14:34:37,176 INFO L137 encePairwiseOnDemand]: 237/242 looper letters, 17 selfloop transitions, 2 changer transitions 14/39 dead transitions. [2023-08-30 14:34:37,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 149 flow [2023-08-30 14:34:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 14:34:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 14:34:37,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2023-08-30 14:34:37,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057851239669422 [2023-08-30 14:34:37,179 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2023-08-30 14:34:37,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2023-08-30 14:34:37,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:34:37,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2023-08-30 14:34:37,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,183 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,184 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 51 flow. Second operand 5 states and 612 transitions. [2023-08-30 14:34:37,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 149 flow [2023-08-30 14:34:37,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:34:37,185 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 66 flow [2023-08-30 14:34:37,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-30 14:34:37,187 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 14:34:37,187 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 66 flow [2023-08-30 14:34:37,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:37,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:34:37,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 14:34:37,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:37,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash -787326699, now seen corresponding path program 1 times [2023-08-30 14:34:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:37,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777317869] [2023-08-30 14:34:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:37,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:34:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:34:37,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:37,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777317869] [2023-08-30 14:34:37,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777317869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:34:37,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:34:37,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:34:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825149501] [2023-08-30 14:34:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:34:37,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:34:37,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:37,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:34:37,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:34:37,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 242 [2023-08-30 14:34:37,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:34:37,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 242 [2023-08-30 14:34:37,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:34:37,414 INFO L130 PetriNetUnfolder]: 35/114 cut-off events. [2023-08-30 14:34:37,415 INFO L131 PetriNetUnfolder]: For 19/27 co-relation queries the response was YES. [2023-08-30 14:34:37,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 114 events. 35/114 cut-off events. For 19/27 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 355 event pairs, 14 based on Foata normal form. 8/122 useless extension candidates. Maximal degree in co-relation 233. Up to 61 conditions per place. [2023-08-30 14:34:37,419 INFO L137 encePairwiseOnDemand]: 234/242 looper letters, 18 selfloop transitions, 8 changer transitions 1/32 dead transitions. [2023-08-30 14:34:37,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 142 flow [2023-08-30 14:34:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:34:37,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:34:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2023-08-30 14:34:37,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-30 14:34:37,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2023-08-30 14:34:37,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2023-08-30 14:34:37,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:34:37,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2023-08-30 14:34:37,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,430 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 66 flow. Second operand 3 states and 363 transitions. [2023-08-30 14:34:37,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 142 flow [2023-08-30 14:34:37,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 126 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 14:34:37,432 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 90 flow [2023-08-30 14:34:37,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-30 14:34:37,433 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2023-08-30 14:34:37,433 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 90 flow [2023-08-30 14:34:37,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:37,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:34:37,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 14:34:37,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:37,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:37,436 INFO L85 PathProgramCache]: Analyzing trace with hash 558446029, now seen corresponding path program 1 times [2023-08-30 14:34:37,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:37,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61389658] [2023-08-30 14:34:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:37,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:34:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:34:37,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:37,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61389658] [2023-08-30 14:34:37,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61389658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:34:37,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:34:37,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:34:37,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700168935] [2023-08-30 14:34:37,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:34:37,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 14:34:37,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 14:34:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:34:37,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 242 [2023-08-30 14:34:37,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:34:37,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 242 [2023-08-30 14:34:37,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:34:37,649 INFO L130 PetriNetUnfolder]: 32/106 cut-off events. [2023-08-30 14:34:37,649 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-08-30 14:34:37,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 106 events. 32/106 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 320 event pairs, 13 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 260. Up to 52 conditions per place. [2023-08-30 14:34:37,650 INFO L137 encePairwiseOnDemand]: 239/242 looper letters, 20 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-08-30 14:34:37,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 148 flow [2023-08-30 14:34:37,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 14:34:37,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 14:34:37,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2023-08-30 14:34:37,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47107438016528924 [2023-08-30 14:34:37,653 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 456 transitions. [2023-08-30 14:34:37,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 456 transitions. [2023-08-30 14:34:37,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:34:37,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 456 transitions. [2023-08-30 14:34:37,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,658 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,658 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 90 flow. Second operand 4 states and 456 transitions. [2023-08-30 14:34:37,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 148 flow [2023-08-30 14:34:37,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:34:37,668 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 84 flow [2023-08-30 14:34:37,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2023-08-30 14:34:37,670 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2023-08-30 14:34:37,671 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 84 flow [2023-08-30 14:34:37,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:37,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:34:37,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 14:34:37,673 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:37,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:37,674 INFO L85 PathProgramCache]: Analyzing trace with hash 558446081, now seen corresponding path program 1 times [2023-08-30 14:34:37,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:37,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891549395] [2023-08-30 14:34:37,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:37,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:34:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:34:37,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:37,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891549395] [2023-08-30 14:34:37,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891549395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:34:37,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:34:37,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 14:34:37,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864332413] [2023-08-30 14:34:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:34:37,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 14:34:37,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:37,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 14:34:37,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 14:34:37,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 242 [2023-08-30 14:34:37,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:37,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:34:37,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 242 [2023-08-30 14:34:37,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:34:38,007 INFO L130 PetriNetUnfolder]: 29/97 cut-off events. [2023-08-30 14:34:38,007 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-30 14:34:38,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 97 events. 29/97 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 244 event pairs, 10 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 226. Up to 48 conditions per place. [2023-08-30 14:34:38,008 INFO L137 encePairwiseOnDemand]: 236/242 looper letters, 19 selfloop transitions, 9 changer transitions 0/32 dead transitions. [2023-08-30 14:34:38,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 162 flow [2023-08-30 14:34:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 14:34:38,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 14:34:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2023-08-30 14:34:38,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484504132231405 [2023-08-30 14:34:38,012 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2023-08-30 14:34:38,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2023-08-30 14:34:38,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:34:38,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2023-08-30 14:34:38,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:38,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:38,016 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:38,016 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 84 flow. Second operand 4 states and 469 transitions. [2023-08-30 14:34:38,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 162 flow [2023-08-30 14:34:38,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 159 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 14:34:38,018 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 125 flow [2023-08-30 14:34:38,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-30 14:34:38,021 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 14:34:38,021 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 125 flow [2023-08-30 14:34:38,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:34:38,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:34:38,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:34:38,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 14:34:38,022 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 14:34:38,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:34:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1037738816, now seen corresponding path program 1 times [2023-08-30 14:34:38,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:34:38,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698489727] [2023-08-30 14:34:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:34:38,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:34:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:34:38,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:34:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:34:38,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:34:38,105 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:34:38,107 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-30 14:34:38,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-30 14:34:38,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2023-08-30 14:34:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-30 14:34:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-30 14:34:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-30 14:34:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-30 14:34:38,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 14:34:38,112 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:34:38,117 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 14:34:38,117 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 14:34:38,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 02:34:38 BasicIcfg [2023-08-30 14:34:38,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 14:34:38,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 14:34:38,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 14:34:38,151 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 14:34:38,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:34:32" (3/4) ... [2023-08-30 14:34:38,153 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 14:34:38,191 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 14:34:38,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 14:34:38,192 INFO L158 Benchmark]: Toolchain (without parser) took 7042.08ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 37.1MB in the beginning and 56.4MB in the end (delta: -19.3MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-08-30 14:34:38,192 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:34:38,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.94ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 33.0MB in the end (delta: 4.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-08-30 14:34:38,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.13ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 30.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 14:34:38,193 INFO L158 Benchmark]: Boogie Preprocessor took 40.99ms. Allocated memory is still 71.3MB. Free memory was 30.7MB in the beginning and 29.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:34:38,193 INFO L158 Benchmark]: RCFGBuilder took 513.12ms. Allocated memory is still 71.3MB. Free memory was 29.2MB in the beginning and 38.8MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-30 14:34:38,194 INFO L158 Benchmark]: TraceAbstraction took 5881.93ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 38.1MB in the beginning and 60.6MB in the end (delta: -22.6MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-08-30 14:34:38,194 INFO L158 Benchmark]: Witness Printer took 41.14ms. Allocated memory is still 109.1MB. Free memory was 60.6MB in the beginning and 56.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 14:34:38,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.94ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 33.0MB in the end (delta: 4.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.13ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 30.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.99ms. Allocated memory is still 71.3MB. Free memory was 30.7MB in the beginning and 29.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 513.12ms. Allocated memory is still 71.3MB. Free memory was 29.2MB in the beginning and 38.8MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5881.93ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 38.1MB in the beginning and 60.6MB in the end (delta: -22.6MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 41.14ms. Allocated memory is still 109.1MB. Free memory was 60.6MB in the beginning and 56.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 127 PlacesBefore, 35 PlacesAfterwards, 127 TransitionsBefore, 34 TransitionsAfterwards, 3136 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 9507 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3834, independent: 3474, independent conditional: 0, independent unconditional: 3474, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1717, independent: 1669, independent conditional: 0, independent unconditional: 1669, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3834, independent: 1805, independent conditional: 0, independent unconditional: 1805, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 1717, unknown conditional: 0, unknown unconditional: 1717] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 92, Positive conditional cache size: 0, Positive unconditional cache size: 92, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; [L683] 0 int h = 0; [L684] 0 int i = 0; [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L710] 0 int x = __VERIFIER_nondet_int(); [L711] COND TRUE 0 x > -1000 [L712] 0 pthread_t id; [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); [L690] 1 int y = __VERIFIER_nondet_int(); [L691] 1 int z = __VERIFIER_nondet_int(); [L692] COND TRUE 1 x < 1000 [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x [L718] EXPR 0 x - 17 [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, B={4:0}, C={5:0}, arg={0:0}, arg={0:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, B={4:0}, C={5:0}, arg={0:0}, arg={0:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 179 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 502 IncrementalHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 71 mSDtfsCounter, 502 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-30 14:34:38,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)